Digital color reference · physical approval required
SOLVENT DYES
Solvent Yellow 21
Solvent Yellow 21 is a metal-complex azo dye used in solvent-borne wood stains, inks, leather finishes and decorative coatings. Solvent solubility and compatibility with the coating binder are the main selection criteria; do not classify it solely as a high-temperature plastics dye.
- Color Index / grade
- S.Y.21
- CAS
- 5601-29-6
- Chemical family
- Metal-complex azo solvent dye
PRODUCT PROFILE
S.Y.21Solvent Yellow 21 — grade profile
Solvent Yellow 21 (S.Y.21) is a metal-complex azo solvent dye for coloration in Printing inks and Coatings & paint. Grade selection should be verified for polymer compatibility, actual processing temperature, target transparency and migration requirements; the data below is limited to values supported by published sources.
No universal performance limit is stated in the published data. Request the current grade TDS and validate it in the intended system.
The listed application scope is Printing inks and Coatings & paint.
Confirm polymer compatibility, transparency, dissolution, actual melt temperature, loading, and migration and light-fastness requirements in the finished article.
REFERENCE SHADE
Full shade and tint
Yellow
Full shade
Tint / reduction
Manufacturer-published shade descriptions were used to correct the color direction. Screen colors remain visual references, not batch standards; approve a physical drawdown or molded plaque under agreed test conditions.
TECHNICAL DATA
Published specifications
Only identified or numerical fields supported by public registry and product-table data are shown. Unpublished values are omitted.
Performance values are catalogue references. The current grade TDS, test conditions and agreed batch COA govern product approval.
APPLICATIONS
Application guidance
Solvent-borne wood stains, printing inks, leather finishes and coatings.
